Yourself

"Hmm... who will she gotta be?" you think to yourself and suddenly blurt out the first thing that pops into your head. "...I'm going to change you into ME!"

"Wait, what?" your girlfriend surprised as she looks a little nervous. "John, Is that even possible? I mean, you're standing right in front of me... You can't just..."

She doesn't notice that her hair is changing color and shrinking on her head. Soon your girlfriend has a carbon copy of your hair. The sight is enough to make you laugh further. "Um... What are you laughing at, John?" she suddenly looks scared. Quickly glancing in the mirror, she almost screams. It looks like someone cut your head off and stuck it to her body. "Oh come on, lighten up a little, babe." You say. "You always DID like the way I looked. Obviously."

"Yeah, but I didn't want to BE you... Just WITH you..." Hmmm... is THAT how your voice sounds?

She suddenly is the same height as you, and it shows when she looks you in the eye. "Next time, you'd better watch out for what I change YOU into." your girlfriend said as she poked you lightly in the chest with a finger that looked more like yours than hers did. Suddenly she kind of clutches herself and her breasts deflate into themselves, and her chest takes on your build. "Maybe I'll turn you into ME!"

"I AM you, Jane. Or should I say... John, or me," you say smirking.

"You know what I'm talking about..." And with that- the change is complete... Standing right in front of you is... YOU.